chore: update Cypress

package.json

@@ -74,7 +74,7 @@
     "compression-webpack-plugin": "^3.0.0",
     "copy-webpack-plugin": "^4.0.1",
     "css-loader": "^0.28.4",
-    "cypress": "^3.7.0",
+    "cypress": "^4.0.1",
     "cypress-file-upload": "^3.5.0",
     "eslint": "^4.12.0",
     "eslint-config-pubsweet": "^0.0.6",